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Finding the Fourth Proportional to 303,695.46, 455,544.81 and 199,176.30

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Solution

The fourth proportional to 303,695.46, 455,544.81 and 199,176.30 is: 298,765.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,695.46 : 455,544.81 = 199,176.30 : x
  2. Step 2: Convert to fraction form
    303,695.46/455,544.81 = 199,176.30/x
  3. Step 3: Cross multiply
    303,695.46x = 455,544.81 × 199,176.30
  4. Step 4: Simplify right side
    303,695.46x = 90,733,729,740.00
  5. Step 5: Solve for x
    x = 90,733,729,740.00/303,695.46
  6. Step 6: Final answer
    x = 298,765.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.